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Using radar data to estimate rainfall amounts: a case study and discussion
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1989
[PDF-2.66 MB]
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Description:Since the early days of weather radar, meteorologists have attempted to correlate radar reflectivities with rainfall amounts. Although many studies have found problems with this approach, it can yield a good first estimate of rainfall over an area. In particular, the MDR data appended to current radar observations can provide useful rainfall information via the AFOS application MDR (Peroutka, 1985). WSFO Des Moines has used this program (with good results) for a number of years for calculating rainfall amounts in convective situations. The following example is one case where the MDR program was used to keep track of rainfall over eastern Iowa. Typically, the program is used to calculate rainfalls over a 1, 3, or 6 hour time span. In this example, the rainfall event occurred over a 12 hour period, so two 6-hour periods were summed to get rainfall totals for the entire event. Although this is a somewhat unique way to use the MDR program, it does demonstrate its usefulness.
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Rights Information:Public domain
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